121101102 has 32 divisors (see below), whose sum is σ = 271641600. Its totient is φ = 39987864.

The previous prime is 121101089. The next prime is 121101107. The reversal of 121101102 is 201101121.

It is a happy number.

It is a super-2 number, since 2×121101102² = 29330953811228808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121101107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4702 + ... + 16257.

It is an arithmetic number, because the mean of its divisors is an integer number (8488800).

Almost surely, 2^121101102 is an apocalyptic number.

121101102 is an abundant number, since it is smaller than the sum of its proper divisors (150540498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121101102 is a wasteful number, since it uses less digits than its factorization.

121101102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21077 (or 21071 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 121101102 is about 11004.5945858991. The cubic root of 121101102 is about 494.7464633667.

Adding to 121101102 its reverse (201101121), we get a palindrome (322202223).

The spelling of 121101102 in words is "one hundred twenty-one million, one hundred one thousand, one hundred two".